 

.grid {
    border: 1px solid #fff;
    width:  calc(100px + 2vmin);
    height: calc(100px + 2vmin); 
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: calc(90px + 2vmin);
    background-color:#61dafb ;
}

.grid:hover {
    background-color: lightblue;
}

.grid-row {
    display: flex;
}

